package com.railwayserviceWX.util;

import javax.servlet.http.HttpServletRequest;

/**
 * 获取HttpServletRequest的ip地址
 *
 * @author lid
 * @date 2017.3.7
 */
public class IpAddressUtils {
    public static String getIpAddr(HttpServletRequest request) {
        String ip = request.getHeader("x-forwarded-for");
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("Proxy-Client-IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("WL-Proxy-Client-IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getRemoteAddr();
        }
        if (ip.length() > 15) {
            String[] ipArr = ip.split(",");
            ip = ipArr[ipArr.length - 1].trim();
        }
        return ip;
    }
}
